Chapter 20 Self-Study Questions

1.dt/ds = 15 s – 5625

Setting this equal to 0 to find the optimum point:

3.Routine 1) dt/ds = 4 s – 148, s = 148 / 4 = 37

Routine 2) dt/ds = 3 s – 126, s = 126 / 3 = 42

When s = 37, Routine 1 yields t = 8566. When s = 42, Routine 2 yields t = 8462. Select routine 2 and hold the input stream at 42.

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